Diffusion Layer Thickness Estimation
Calculates the liquid-side mass-transfer coefficient and the resulting diffusion layer thickness in a stirred-tank reactor using empirical Sherwood correlations.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Rotational Speed (rps) (N_rps)
- rps
- rps
Impeller Tip Speed (U)
- m/s
- m/s
Kinematic Viscosity (nu)
- m²/s
- m²/s
Reynolds Number (Re)
- dimensionless
- dimensionless
Schmidt Number (Sc)
- dimensionless
- dimensionless
Sherwood Number (Sh)
- dimensionless
- dimensionless
Liquid-side Mass-Transfer Coefficient (k_L)
- m/s
- m/s
Diffusion Layer Thickness (h)
- m
- m
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Download Offline Excel CalculationContext & Assumptions
The diffusion layer thickness characterizes the distance over which a solute must travel from the bulk liquid to the interface before phase transfer occurs. This parameter is essential for estimating mass-transfer rates in stirred-tank reactors and gas-liquid absorbers, directly impacting reactor sizing and process efficiency.
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